Standard Evolve Shaman really, added The Runespear and it really works with the deck.
I have added only 1 Murmuring Elemental into the deck as it can be really situational. Obviously, it works amazingly well with Thrall, Deathseer as your minions go up by (4) mana. A second copy can probably be added to bump up the value of some of the battlecry cards however it is not very good standalone.
Another addition in this verison to a normal Evolve Shaman is the slight Elemental package. When I was coming up with this originally, I wanted way more Elemental synergy such as: Kalimos, Primal Lord, Fire Elemental and even Air Elemental. However, they didn't fit in with the evolve win strategy so I removed them for some better cards. I have still got one copy of Stone Sentinel as if you can evolve the (7) mana 4/4 body into an (8) cost card, you're ballin'. There is still enough synergy in the deck to to get its battlecry effect off in the forms of Hot Spring Guardian, Jade Spirit and the copy of Murmuring Elemental.
Edit: 10 upvotes reached so mulligan guide is here.
Jade Claws is obviously a very strong turn two card as it can trade nicely into a lot of (2)/(3) mana cards. I try a lot of the time to keep some sort of Elemental in my hand in the form of Hot Spring Guardian or Jade Spirit as they are both strong against aggro decks.
Against the more controlling decks, I would personally say that preist is the hardest. If they have a turn 1 Northshire Cleric you're going to have a hard time killing it and the cards they draw from it normally push your late game too much. However, against most control decks, Thrall, Deathseer is always a good keep especially if you get the Murmuring Elemental as on turn 7 if you have any kind of board it can completely turn any game. Thing from Below is also a good keep as you will most likely be just using your hero power in a control matchups and if you have a turn 3 Mana Tide Totem its an even bigger power swing on your potential turn 5 play.
Deck stats as of yesterday (09/12/17): https://imgur.com/LQ21sgM
A lot of people were playing Spell hunter to my surprise so my winrate was rather high. Nearly every game this deck plays against Secret tempo mage it looses so it is not a good deck to climb with in the current meta. I have removed one copy of Devolve for one Eater of Secrets to try to make this slightly better.